Just got back home with my son,from a day out visiting a home guard pill box by Birmingham airport, cannot believe how everything is still inside,down to furniture and storage containers.There were four rooms in the pill box due to bad lighting I couldn’t see exactly what was inside so I intend to visit again very soon, but there was one room stacked with approximately thirty of these lead like crates, any information on these crates would be very grateful,as I cannot find any information on the internet what’s so ever. Many thanks Jamie